mile such with only above for for lasts

Demilich

Monsters Monster Manual

presence, creating the following effects: Enervating Domain. Whenever a creature other than the demilich or one of its allies finishes a Long Rest within 1 mile of the lair, the creature must succeed on a

DC 20 Constitution saving throw or have its Hit Point maximum reduced by 1d4;{"diceNotation":"1d4", "rollType":"roll", "rollAction":"Enervating Domain"}. This reduction lasts until the creature

Reduced-threat Aboleth

Monsters Tales from the Yawning Portal

repeat the saving throw when it is at least 1 mile away from the aboleth.The aboleth can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time

1 mile of the aboleth’s lair are slimy and wet and are difficult terrain. Water sources within 1 mile of the lair are supernaturally fouled. Enemies of the aboleth that drink such water vomit

Demogorgon Legacy

Monsters Out of the Abyss

"} bludgeoning damage. If the target is a creature, it must succeed on a DC 23 Constitution saving throw or its hit point maximum is reduced by an amount equal to the damage taken. This reduction lasts

the confusion spell without making a saving throw. The effect lasts until the start of Demogorgon’s next turn. Demogorgon doesn’t need to concentrate on the spell.Demogorgon can take 2

Dyrrn

Monsters Eberron: Rising from the Last War

each time it fails the saving throw for this lair action. The target dies if its Intelligence score is reduced to 0. The reduction lasts until the target finishes a short or long rest. Regional

Effects A region containing a passage to Dyrrn’s lair is warped in one or more of these ways: Plants and animals raised within 2 mile of the passage have twisted, aberrant forms. Use the

Sofina

Monsters Thieves’ Gallery

she can see within 1 mile of herself. These spheres can overlap. Each creature in one or more of these spheres must make a DC 18 Dexterity saving throw, taking 35 (10d6);{"diceNotation":"10d6

Sofina, whom it obeys. The summoned wraith takes its turn immediately after Sofina. It lasts for 1 hour, until it or Sofina dies, or until Sofina dismisses it as a bonus action.

Malaxxix

Monsters The Book of Many Things

outside the cylinder. The vortex lasts until the start of Malaxxix’s next turn.Malaxxix can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a

60 feet of the cursed creature, regardless of the creature’s location in the multiverse. The curse of Malaxxix lasts until ended with a Remove Curse spell, a Greater Restoration spell, or

Zuggtmoy Legacy

Monsters Out of the Abyss

of Zuggtmoy table) that lasts until the creature is cured of the disease or dies. While infected in this way, the creature can’t be reinfected, and it must repeat the saving throw at the end of

within 6 miles of the lair, even where they would normally find no purchase. Plant life within 1 mile of the lair becomes infested with parasitic fungi, slowly mutating as it is overwhelmed. If a

Baphomet Legacy

Monsters Out of the Abyss

more of the following effects: Plant life within 1 mile of the lair grows thick and forms walls of trees, hedges, and other flora in the form of small mazes. Beasts within 1 mile of the lair

become frightened and disoriented, as though constantly under threat of being hunted, and might lash out or panic even when no visible threat is nearby. If a humanoid spends at least 1 hour within 1 mile

Demogorgon

Monsters Mordenkainen Presents: Monsters of the Multiverse

maximum is reduced by an amount equal to the damage taken. This reduction lasts until the target finishes a long rest. The target dies if its hit point maximum is reduced to 0. Gaze. Demogorgon turns his

sight. 3–4: Confusing Gaze. The target suffers the effect of the confusion spell without making a saving throw. The effect lasts until the start of Demogorgon’s next turn. Demogorgon doesn

Yan-C-Bin

Monsters Princes of the Apocalypse

lasts until initiative count 20 on the next round. The debris lightly obscures every creature and object in the area for the duration. All creatures in the area must succeed at a DC 24 Wisdom saving throw

touch. Gale force winds tear across the landscape in a 5-mile radius, whisking away small or light objects, dismantling roofs and fences, tearing branches from trees, and making flight impossible

Juiblex Legacy

Monsters Out of the Abyss

lair. The area can be up to 10 feet on a side. The slime lasts for 1 hour or until it is burned away with fire. When the slime appears, each creature in that area must succeed on a DC 21 Strength

Square","rollDamageType":"fire"} fire damage. Juiblex slimes a square area of ground it can see within the lair. The area can be up to 10 feet on a side. The slime lasts for 1 hour or until it is

Fraz-Urb'luu Legacy

Monsters Out of the Abyss

creatures within 1 mile of the lair frequently see hallucinations of long-dead friends and comrades that vanish after only a brief glimpse. Roads and paths within 6 miles of the lair twist and turn back on

themselves, making navigation in the area exceedingly difficult. If a humanoid spends at least 1 hour within 1 mile of the lair, that creature must succeed on a DC 23 Wisdom saving throw or descend

Graz'zt Legacy

Monsters Out of the Abyss

(Stealth) checks made to hide. Regional Effects The region containing Graz’zt’s lair is warped by his magic, creating one or more of the following effects: Flat surfaces within 1 mile of

frequent conflicts and coupling, mirroring the behavior that occurs during their mating seasons. If a humanoid spends at least 1 hour within 1 mile of the lair, that creature must succeed on a DC 23

Geryon

Monsters Mordenkainen Presents: Monsters of the Multiverse

long rest. The target’s hit point maximum is reduced by an amount equal to half the poison damage taken. This reduction lasts until the poisoned condition is removed. The target dies if its hit

The region containing Geryon’s lair is warped by his magic, creating one or more of the following effects: Chilling Wind. Freezing strong winds howl around the area within 1 mile of the lair

Stalagma Steelshadow

Monsters Waterdeep: Dungeon of the Mad Mage

dragon creates fog as if it had cast the fog cloud spell. The fog lasts until initiative count 20 on the next round. A blisteringly cold wind blows through the lair near the dragon. Each creature within

creates one or more of the following effects. Once per day, the dragon can alter the weather in a 6-mile radius centered on its lair. The dragon doesn’t need to be outdoors; otherwise the effect

Yeenoghu Legacy

Monsters Out of the Abyss

magic, creating one or more of the following effects: Within 1 mile of the lair, large iron spikes grow out of the ground and stone surfaces. Yeenoghu impales the bodies of the slain on these spikes

a humanoid spends at least 1 hour within 1 mile of the lair, that creature must succeed on a DC 17 Wisdom saving throw or descend into a madness determined by the Madness of Yeenoghu table. A

Drowned Master

Monsters Ghosts of Saltmarsh

Bound Together. The drowned master shares its mind with every other drowned one within 1 mile of it, and can communicate its thoughts and observations to them instantaneously and without limitation

maximum to 0. This reduction lasts until the target finishes a long rest. On a failed save, the target also contracts bluerot (see the “Bluerot” sidebar). Necrotic Ink (Recharge 5–6). The drowned master

Geryon (Variant)

Monsters Mordenkainen Presents: Monsters of the Multiverse

long rest. The target’s hit point maximum is reduced by an amount equal to half the poison damage taken. This reduction lasts until the poisoned condition is removed. The target dies if its hit

Effects The region containing Geryon’s lair is warped by his magic, creating one or more of the following effects: Chilling Wind. Freezing strong winds howl around the area within 1 mile of

Dekella, Bident of Thassa

Magic Items Mythic Odysseys of Theros

within 1 mile of you, creating strong winds and heavy rain that cause violent waves (see “Weather at Sea” in chapter 5 of the Dungeon Master’s Guide) or calming a storm. In either

case, the unnatural weather lasts for 1 hour before returning to normal. Once used, this property of the bident can’t be used again until the next dusk. Additionally, you can cast the dominate

Balhannoth

Monsters Mordenkainen Presents: Monsters of the Multiverse

transformation lasts until the balhannoth dies or takes this lair action again. Regional Effects A region containing a balhannoth’s lair becomes warped by the creature’s unnatural presence

, which creates one or more of the following effects: Sense Desires. The balhannoth can sense the strongest desires of any Humanoid within 1 mile of it and learns whether those desires involve a place: a

Storm Giant Quintessent

Monsters Mordenkainen Presents: Monsters of the Multiverse

spreads around corners, and its area is heavily obscured. The fog lasts until the giant disperses it (no action required), and it can’t be dispersed by wind. Gale. The giant creates a 60-foot-long

of the following effects: Downpour. Rain, snow, or blowing dust or sand (whichever is most appropriate) is constant within 1 mile of the lair. Rain causes rivers and streams to fill or overflow

Doomtide

Spells Forgotten Realms: Heroes of Faerûn

You create a 20-foot-radius Sphere of inky fog within range. The fog is magical Darkness and lasts for the duration or until a strong wind (such as the one created by the Gust of Wind spell

), which the spell consumes. The spell’s range increases to 1 mile, and its duration increases to until dispelled (no Concentration required). The spell ends early if any caster who participated in

Olhydra

Monsters Princes of the Apocalypse

(Costs 3 Actions). Olhydra transforms her watery body into acid. This effect lasts until Olhydra’s next turn. Any creature that comes into contact with Olhydra or hits her with a melee attack

":"2d12","rollType":"roll","rollAction":"Violent downpours"} hours, and lasts 1d3 hours. Downpours are so heavy that creatures moving overland travel at half normal speed. Within 5 miles of the lair

Vampiric Mist

Monsters Mordenkainen Presents: Monsters of the Multiverse

hit point maximum is reduced by an amount equal to the necrotic damage taken. This reduction lasts until the target finishes a long rest. The target dies if its hit point maximum is reduced to 0.In

droplets wherever it goes. Like sharks in water, vampiric mists can scent blood from up to a mile away. Any injury, no matter how small, might catch their attention and draw them toward their victims

Orcus Legacy

Monsters Out of the Abyss

necrotic energy 60 feet tall and with a 10-foot radius rises from that point and lasts until the end of Orcus’s next turn. Creatures in that area are vulnerable to necrotic damage.Orcus is the Demon

stench of rotting flesh, and buzzing flies grow thick within the region, even when there is no carrion to be found. If a humanoid spends at least 1 hour within 1 mile of the lair, that creature must

Scion of Stronmaus

Monsters Bigby Presents: Glory of the Giants

Elemental Plane of Water (if the scion is in the ocean) form within 1 mile of the cradle or scion, allowing elemental creatures into the world. Empowered Storm Giants. Storm giants within 1,000 feet

of the scion gain a +8 bonus to attack and damage rolls. Extreme Weather. The weather within 1 mile of the scion dramatically shifts day to day, ranging from pleasantly sunny to brutal hailstorms

Arasta

Monsters Mythic Odysseys of Theros

":"recharge","rollAction":"Web of Hair"}. Arasta unleashes her hair in the form of webbing that fills a 30-foot cube next to her. The web is difficult terrain, its area is lightly obscured, and it lasts for 1

, where they consider home, and what brought them to her web. Arasta casts the giant insect spell (spiders only). It lasts until she uses this lair action again or until she dies. Regional Effects

Zargon the Returner

Monsters Quests from the Infinite Staircase

, surrounds the target. The sphere is centered on the target, moves with the target, and lasts until the end of Zargon’s next turn. Slime Wave (Recharge 5–6);{"diceNotation":"1d6", "rollType

that area when the slime appears has the grappled condition (escape DC 15). Aberrations and Oozes are unaffected by the slime. The slime lasts until Zargon dies or until it uses this lair action

Belashyrra

Monsters Eberron: Rising from the Last War

more of the following effects: Creatures within 1 mile of the passage sometimes feel as if they’re being watched. Beasts that live within 5 miles of the passage undergo magical

transmutation, growing eyes or eyestalks that Belashyrra can see through. A humanoid who spends at least 1 hour within 1 mile of the passage must succeed on a DC 21 Wisdom saving throw or descend into a type of

Devastation Orb

Magic Items Princes of the Apocalypse

is contained within a sphere with a 1 mile radius. The orb is the sphere’s point of origin. The orb is destroyed after one use. Air Orb. When this orb detonates, it creates a powerful windstorm

that lasts for 1 hour. Whenever a creature ends its turn exposed to the wind, the creature must succeed on a DC 18 Constitution saving throw or take 1d4 bludgeoning damage, as the wind and debris

Imix

Monsters Princes of the Apocalypse

damage. A fountain lasts for 2d10;{"diceNotation":"2d10","rollType":"roll","rollAction":"Lava Fountain Duration"} rounds before subsiding. Wildfires or volcanic fissures within 1 mile of Imix’s lair

. Wildfires erupt within a 5-mile radius of Imix’s lair. Every hour, there is a ten percent;{"diceNotation":"1d100","rollType":"roll","rollAction":"Wildfire Chance"} chance that characters in this area

Guild Keyrune

Magic Items Guildmasters’ Guide to Ravnica

lazuli to resemble a noble bird of prey. It can become a giant eagle for up to 1 hour. While the transformed eagle is within 1 mile of you, you can communicate with it telepathically. As an action, you

a dire wolf. The wolf persists for 8 hours. Its Intelligence is 6, and it understands Elvish and Sylvan but can’t speak those languages. While it is within 1 mile of you, you can communicate

Adult Lunar Dragon

Monsters Spelljammer: Adventures in Space

see within 120 feet of itself. The ice, which is difficult terrain for all creatures except lunar dragons, lasts for 10 minutes or until the dragon uses this legendary action again.Lunar dragons

dust and frost known as moon devils crisscross the area within 1 mile of the lair, intercepting other creatures they encounter. A moon devil is a free-willed air elemental that deals cold damage instead

Ancient Lunar Dragon

Monsters Spelljammer: Adventures in Space

can see within 120 feet of itself. The ice, which is difficult terrain for all creatures except lunar dragons, lasts for 10 minutes or until the dragon uses this legendary action again. Wing Attack

;Swirling funnels of dust and frost known as moon devils crisscross the area within 1 mile of the lair, intercepting other creatures they encounter. A moon devil is a free-willed air elemental that deals

Juiblex

Monsters Mordenkainen Presents: Monsters of the Multiverse

the first time on a turn or ends its turn there, that creature must make the same save. The slime lasts for 1 hour or until it is burned away with fire. If the slime is set on fire, it burns away

check. The slime lasts for 1 hour or until it is burned away with fire. If the slime is set on fire, it burns away after 1 round. Any creature that starts its turn in the burning slime takes 22 (4d10

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